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1 vote
Find the value of x. Log x8=0.5

User Trenera
by
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2 Answers

5 votes
Answer 64= x
Explanation: sorry
User Racheli
by
3.2k points
2 votes

Answer: x = 64

Explanation:

First you need to know that if we have:
log_b(y)=x this is equal to
y=b^x

So,
log_x8=0.5 can be rewritten as:
8=(x)^0^.^5


0.5 can be rewritten as:
(1)/(2) and why did I do this? you may ask. This way I can rewrite the exponent as a square root, as following;


8=(x)^(1)/(2)

The property says that:
\sqrt[n]{x^m}=x^(m)/(n)

So, we can rewrite our operation as;


8=\sqrt[]{x}

Now let's raise both sides to the power of 2, to get rid of the square root.


(8)^2=(\sqrt[]{x})^2


64=x

User TechPackets
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2.4k points